[FFmpeg-cvslog] [propchange]: r9949 - svn:log

[michael]

Author: michael
Revision: 9949
Property Name: svn:log
Action: modified

Property diff:
--- old property value
+++ new property value
@@ -3,6 +3,11 @@ update seek regressions for r9917 
 
 sorry, i will rm tests/seek_test ; make ; make seektest from now on
 
-the actual change to the seek test regressions is just adding a small constant
-to the timestamps at the start which were not known (AV_NOPTS_VALUE) these in
-some cases are all timestamps
+Before r9917 lavf replaced the initial dts which where unknown (AV_NOPTS_VALUE)
+by values starting from -frame_duration or another guessed value.
+After r9917 lavf buffers packets until it finds a known timestamp or it buffered
+too much, it will then correct the previous unknown timestamps in the buffer exactly.
+For the seek tests that meant that a few initial timestamps would get changed.
+If no packet in the whole stream contains a timestamp then all timestamps
+will be changed by first_frame_duration or so as 0 is used instead of
+-frame_duration as startpoint ...